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I successfully rooted my Nook Tablet and installed CM 7. However I foolishly applied a zip update that was not compatible and now I'm stuck in a boot loop.
My CWM bootable SD card refuses to work no matter what. I've followed the steps exactly as stated :
1. Using GParted on Ubuntu
2. I selected No-Free space preceding partition while partitioning
3. 50MB
4. FAT 32
5. Boot and LBA flags
6. Copied files
I don't know what to do to to make it work. I've tried all sorts of minor variations in partitioning the card but nothing appears to make the SD card work.
Can someone please help me?
Use Adam Outler's Ubuntu recovery image. He provides step by step instructions on how to unzip the image and transfer it onto the sd card. Have to use linux so if your on a Windows pc, then go grab you a cd or usb bootable copy of Ubuntu. The restoration process takes a while and seems like it hangs in spots but have patience. It takes somewhere around 20 minutes for it to complete but in the end you will be back on stock 1.4.0, safe and sound....Good Luck.
Alright well, I managed to get CWM working. Apparently my SD Card was just fine - I just needed to make sure the NT was plugged into a computer at the same time.
Now my question is : how do I get things working again? I had previously thought that I could simply flash CM 7 again and this would fix the issue, but now I realize that for some reason CWM only read from the 50MB partition from which it booted. Changing the SD card after booting into CWM doesn't work either.
So what do I do? Thanks again..
Nevermind. What I did was pushed the recovery to the internal card so that I didn't need the SD card to boot into recovery. I then reformatted my card and dumped the CM7 zip onto it. Then reflashed CM7. Voila.
somebody9 said:
Alright well, I managed to get CWM working. Apparently my SD Card was just fine - I just needed to make sure the NT was plugged into a computer at the same time.
Now my question is : how do I get things working again? I had previously thought that I could simply flash CM 7 again and this would fix the issue, but now I realize that for some reason CWM only read from the 50MB partition from which it booted. Changing the SD card after booting into CWM doesn't work either.
So what do I do? Thanks again..
Click to expand...
Click to collapse
Glad to read you got it working.
Just wanted to comment on the above.
You can boot the SD version of cwm then remove the SD card. This is exactly how I installed CM7 That I'm currently running.
It didn't take the first time as cwm didn't read my SD. But after a repartition of the SD csrdz no problems.
todbanner said:
Glad to read you got it working.
Just wanted to comment on the above.
You can boot the SD version of cwm then remove the SD card. This is exactly how I installed CM7 That I'm currently running.
It didn't take the first time as cwm didn't read my SD. But after a repartition of the SD csrdz no problems.
Click to expand...
Click to collapse
I actually tried taking the SD card out, reformatting it and then trying to get it to read but for some reason CWM just doesn't do it. Maybe I should have tried a few more times...
Hey Guys,
I just got my 16gb NT during ebay's $199 sale. I'm having a serious problem getting the thing to boot off of an SD card. It came stock with 1.4.1, but I think something's different because I've tried:
Restoring back to 1.4.0 with the acclaim_update.zip:
http://forum.xda-developers.com/showthread.php?t=1402190
And the NT root SD card
Nook Tablet Root SD Cards
No mater what I do, I can't get it to boot off of the SD card via the zip or into CWM, all I get are factory reset screens instead of CWM. I've tried 3 different SD cards.
I'm going to give this a shot next:
http://forum.xda-developers.com/showthread.php?t=1470910
I don't know if it's going to work, so any help would be greatly appreciated. What's stopping my NT from booting off of the SD?!
why go back to 1.4.0 you don't need to. use indirect method using his image writer tool supplied if your on windows it sounds like you are not formatting the sd card
nba1341 said:
why go back to 1.4.0 you don't need to. use indirect method using his image writer tool supplied if your on windows it sounds like you are not formatting the sd card
Click to expand...
Click to collapse
I've tried formatting the cards both using windows and the NT internal tool. I've also tried writing the image file both directly to the SD and to the SD mounted in the nook.
I'll try indirect's method first.
I wanted to go to 1.4.0 to snowball.
It is my understanding that BN made a change in the new 8 gig NT that somehow prevents booting from the sdcard. Check other threads. No one so far has been able to boot from sdcard. Making some changes in Indirect's setup may solve it so I read on one of the threads. good luck.
Singingdrum said:
It is my understanding that BN made a change in the new 8 gig NT that somehow prevents booting from the sdcard. Check other threads. No one so far has been able to boot from sdcard. Making some changes in Indirect's setup may solve it so I read on one of the threads. good luck.
Click to expand...
Click to collapse
Not an 8gig - full 16 gig.
nba1341 said:
use indirect method using his image writer tool supplied if your on windows it sounds like you are not formatting the sd card
Click to expand...
Click to collapse
Doesn't work. Formatted through the nook, connected through the nook, wrote the image through the nook, etc. Went to go boot up (power+n, screen on/off, eject/reinsert card, power on) - all I got was a factory reset option instead of CWM.
Something is amiss.
Singingdrum said:
It is my understanding that BN made a change in the new 8 gig NT that somehow prevents booting from the sdcard. Check other threads. No one so far has been able to boot from sdcard. Making some changes in Indirect's setup may solve it so I read on one of the threads. good luck.
Click to expand...
Click to collapse
That change is the bootloader locking up because it's the wrong bootloader.
AdamOutler said:
That change is the bootloader locking up because it's the wrong bootloader.
Click to expand...
Click to collapse
Again, this is a 16gb nook tablet, not an 8gb. It looks like, very very briefly, I may be getting something other than the factory reset screen - I see what looks like the start of the nook bootup animation, then a green arrow that flashes quickly, before I get the factory reset screen.
I bought the NT from the Ebay sale last week as well. Have you heard of anyone else having issues booting off the SD card?
I was planning to book the NT tomorrow. Sounds like I might be returning mine if that doesn't work...
Nikkie
Try turning it off completely, inserting the SD card, and plugging it into your computer.
Sent from my Nook Tablet using Tapatalk
so to clarify things. you put the acclaim update zip on the sd card. and did you let it reset your nook to 1.4.0 or not? Also you don't have the acclaim update zip on your memory card when you are trying to boot off the sd card do you?
It did not try to reset it. It didn't do anything other than boot normally.
I know it sees SD cards because i can look at files, but it did not boot from it.
ok. wipe your sd card. put on ONLY the acclaim update zip. nothing else. stick that in your nook then turn it off. (in that order) then when it powers back on, let it update your nook
once it's updated, turn your wifi off and check what version you are on. then delete the acclaim update zip from your sd card and report back. KEEP IN MIND. it's NOT "booting off the sd" for this. it's just resetting the software to 1.4.0. if you think it's supposed to boot off a sd for this, think again. expect to see something along the lines of a factory update. that's what it's supposed to do whenever the acclaim update zip is on your sd card.
pissinguoff247 said:
Again, this is a 16gb nook tablet, not an 8gb. It looks like, very very briefly, I may be getting something other than the factory reset screen - I see what looks like the start of the nook bootup animation, then a green arrow that flashes quickly, before I get the factory reset screen.
Click to expand...
Click to collapse
Yeah, you're not affected by it. Your problem is operator error. They can't change hard-coded IROM with a firmware update.
I don't know what I did but I finally got acclaim to wipe me back to 1.4.0.
I had 3 different SD's formatted in various ways through the pc, through the tablet, etc. Each time it was ONLY acclaim on there. 158th time's the charm, I guess.
Now to tackle the apk parse errors while trying to sideload stuff.
Parse errors are caused by selecting the first button option just once when installing an app and then the second option button which is the only one you should ever select will give you parse error as well. If you do a search on parse errors you will see it.
All the Best
I was having issues with my SD card not booting last night during my CM7 install. After checking my work in Gparted I knew it was OK. Finally I unzipped the files into the upper root and it booted. I know I had it boot with the zip before but this time I could not get it to work?
pepi4 said:
I was having issues with my SD card not booting last night during my CM7 install. After checking my work in Gparted I knew it was OK. Finally I unzipped the files into the upper root and it booted. I know I had it boot with the zip before but this time I could not get it to work?
Click to expand...
Click to collapse
What exactly do you mean by "upper root?" I'm trying to get CWM and CM7 installed now that I know this thing will boot something off of the SD but I'm back to square 1
pissinguoff247 said:
What exactly do you mean by "upper root?" I'm trying to get CWM and CM7 installed now that I know this thing will boot something off of the SD but I'm back to square 1
Click to expand...
Click to collapse
If you are on 1.4.0, go to http://nook1.adamoutler.com then nook2 and 3
Choose package installer. Then use some adb root
AdamOutler said:
If you are on 1.4.0, go to http://nook1.adamoutler.com then nook2 and 3
Choose package installer. Then use some adb root
Click to expand...
Click to collapse
Nice.
Finally got CWM using the APK. This is a f!cking nightmare. I swear this thing is messing with me.
Well apparently I was sent to the wrong forum (NOOK COLOR) I thought the color and tab's used the same stuff. Apparently not. I have CM7 working on a 32GB SD card and will have one on a 16GB SD card in a few minutes for my fiancee's NT. I have all my apps that are linked to my Google account installed on my NT now what?
I have noticed the remaining SD card space is small. Surely I didn't use up all 32GB already. I assume the windows writing software made a small partition on the SD card for CM7 so how do I gain that space back or make the NT use the extra space for installations of apps etc?
Do apps have to come just from the app store or is this considered a rooted OS now where I can put apps on the SD card from anywhere and is there a special way to do this?
Just popped the 16GB SD card in my fiancee's nook and powered it on for the first time. I saw the Team-B screen then it went black. Apparently it rebooted and loaded up the stock nook OS. I suppose a re-write is in order on the SD card?
The SD ROM that you made is already rooted. It can do...root things.
As for the rest of your storage space on the microSD card, you'll have to do a little repartitioning. Looks like you're using Windows, so I recommend the freeware called MiniTool Partition Wizard. The user interface is every simple to understand.
All you want to do is resize the last partition on your SD card to consume all of the unallocated space that was left over. Then you will have access to your entire SD card space.
EDIT: Just saw your second post. Turn the NT off completely and plug it into the wall charger. Let it power on and see if it boots all the way through to CM7. If not try rewriting the ROM to the card. Or you may need to use a different SD card. I know I had problems with a 16GB PNY Class 10 card.
That is correct. I'm on windows 7
This is normal correct?
Solar.Plexus said:
EDIT: Just saw your second post. Turn the NT off completely and plug it into the wall charger. Let it power on and see if it boots all the way through to CM7. If not try rewriting the ROM to the card. Or you may need to use a different SD card. I know I had problems with a 16GB PNY Class 10 card.
Click to expand...
Click to collapse
I drug the bar all the way to the right on the last block on the SD card. Plopped it back in my nook and its booting to Nook stock.
Now for the above edit Its on a 16GB PNY C4 hmmmm.......
Would it have anything to do with not being fully charged yet being plugged into the wall though?
So now both are fubared for the second only booting to nook stock. LOL This was going so well about an hour ago and here I'm worried about what bells and whistles can be done and things can be added and how to add them. Sheesh I can't even keep CM7 working.
Both don't even try to boot from SD anymore? You might have to try and remake the ROM and switch to a different card.
Got another question. Just full of them I suppose.
Is there a way to have a boot menu on start up vs pulling out the SD card to get to the stock NT OS?
I would say CM7 also but it seems its not supported yet for SD booting.
Easiest way to get your boot menu would be to flash fattire's Cyanoboot. It's a second bootloader that allows you to choose from where you would like to boot at each power up.
Yea pulled the sd out of my fiancee's and it wont even boot into nook os wtf.
Plugged in or not.
Mine is booting fine into either again kinda weird.
Did the N/Power 20 seconds thing and got her NT powered back up without the SD card in. So it went into Vanilla nook with video and all since it is a new unit. Running the img file over the SD card again to see if it was just a hiccup and not an issue with the PNY SD.
I'm going to chock it up for the nook doesn't like class 4 pny 16gb cards since I re-wrote the sd card and I get the same problem.
It boots showing the N then flashed to the team-b loading screen then goes black for a while then shows the N and then loads nook stock.
So I'll go over to Frys and pick up another Patriot 32GB Class 4 card and give that a whirl. (It's what is running in mine just fine.)
That might be all it needs. Lots of people have success with SanDisk Class 4 SD cards, too.
Solar.Plexus said:
That might be all it needs. Lots of people have success with SanDisk Class 4 SD cards, too.
Click to expand...
Click to collapse
Since the NT is technically rooted via the SD card on mine how do I go about putting apps on it? Is there a certain place they need to go etc?
Not talking about apps from the Play Store either.
Meaning files like *.apk
So this is exactly how I run my nook tablet, and thankfully, I've had only one issue with SD cards and formating it with https://www.sdcard.org/downloads/formatter_3/ helped.
As for the rest, depending on the image that you used, it may or may not have Google Play Store installed, if it is, great, if not, you need to get it onto the card.
If it's already installed (and it most likely should be) then you just go into the Google Play store and download whatever you want.
You just need to be registered with a Google Account on the device.
Any more specific questions, just let me know, as I said I run the same thing for my nook, so I'm fairly familiar with it.
scgt1 said:
Since the NT is technically rooted via the SD card on mine how do I go about putting apps on it? Is there a certain place they need to go etc?
Not talking about apps from the Play Store either.
Meaning files like *.apk
Click to expand...
Click to collapse
If you're talking about sideloading apps, just put the .apk files on your SD card and open them with a file manager/explorer, then it will prompt you to install the app.
Your NT should mount the 1st (boot) partition of the SD card, unless you go into the vold.fstab and tell it otherwise.
Sent from my Slider SL101.
Solar.Plexus said:
If you're talking about sideloading apps, just put the .apk files on your SD card and open them with a file manager/explorer, then it will prompt you to install the app.
Your NT should mount the 1st (boot) partition of the SD card, unless you go into the vold.fstab and tell it otherwise.
Sent from my Slider SL101.
Click to expand...
Click to collapse
Sounds easy enough lol. I'll mess around with that after I watch the evening tv shows and my fiancee lays down. I still need to search for the dual boot thing you told me about earlier so I can choose where to boot to instead of pulling out the sd card. (What a terrible design where they put it. They could have just put a slot in the bottom or something instead of hiding it in the cut out area so you can't maneuver it around.)
Can the APK files be deleted off the SD card once they are installed?
Ok so made a folder and put all apk files in it on the SD card
I open the file manager on android and that folder can't be found???
I just tried to put the apk files on the root of the SD card now its just loading the stock nook OS.
So obviously putting the apk's in the root isn't a good idea.
scgt1 said:
Ok so made a folder and put all apk files in it on the SD card
I open the file manager on android and that folder can't be found???
I just tried to put the apk files on the root of the SD card now its just loading the stock nook OS.
So obviously putting the apk's in the root isn't a good idea.
Click to expand...
Click to collapse
what file manager are you using? you should be using something like es file explorer or root explorer. the standard file manager that comes with android is useless when it comes to sideloading apk's
ShinnAsuka said:
what file manager are you using? you should be using something like es file explorer or root explorer. the standard file manager that comes with android is useless when it comes to sideloading apk's
Click to expand...
Click to collapse
Using ES File Explorer now. :good:
Ok, so I have firmware 1.4.3 on my Nook Tablet. I have rooted my nook using this video (Please copy and paste this on Youtube, as I am new and cannot put in links) [How To] Root The Nook Tablet (firmware 1.4.3) In 10 Minutes or Less Tutorial. After rooting it, I believe it runs Android 2.2
Now, I was wondering how to upgrade this version of Android to say, Jellybean or Ice Cream Sandwich. Could someone explain these instructions to me clearly? I really want to do it, but I need clear instructions, as I am not that high-tech.
I also want a way in which it will not affect my barnes and nobles apps and data.
Help would be very appreciated! Thank you!
SplendaChan said:
Ok, so I have firmware 1.4.3 on my Nook Tablet. I have rooted my nook using this video (Please copy and paste this on Youtube, as I am new and cannot put in links) [How To] Root The Nook Tablet (firmware 1.4.3) In 10 Minutes or Less Tutorial. After rooting it, I believe it runs Android 2.2
Now, I was wondering how to upgrade this version of Android to say, Jellybean or Ice Cream Sandwich. Could someone explain these instructions to me clearly? I really want to do it, but I need clear instructions, as I am not that high-tech.
I also want a way in which it will not affect my barnes and nobles apps and data.
Help would be very appreciated! Thank you!
Click to expand...
Click to collapse
Well you don't just "upgrade" to Jelly Bean. The method you used is rather old. CM10.1 Jelly Bean 4.2.2 is currently the newest version available. Since you're new I suggest using a SDC image http://goo.im/devs/succulent/acclaim/cyanogenmod/image/cm_acclaim_10.1_21APR2013_HD_SDC_IMG.7z
All you need to do is write the image file to an SD card and you're good to go. Use win32diskimager to write the image file to your SD card.
The root I did boots from the internal memory...so I do not have to unroot my Nook and do your method? I can just burn the image into my sd and insert it in?
SplendaChan said:
The root I did boots from the internal memory...so I do not have to unroot my Nook and do your method? I can just burn the image into my sd and insert it in?
Click to expand...
Click to collapse
Yes. Everything runs off the SD card and not your eMMC (internal memory). If you want to unroot your tablet the easiest thing to do would be write this image file to an SD card and plug it into your nook.
http://raywaldo.com/2012/06/make-unbrick-repartition-image/
It's a repart image that will restore stock 1.4.2 rom.
As for the CM10.1 SDC ROM when you write it to your SD card it creates the partitions for you instead of you making them with a partitioning software. You may expand your DATA1 and SDCARD partitions MiniTool Partition Wizard (you'll see what I'm talking about once you write the image file.)
So I just plug in my sd card and the nook unroots? Is there anything I have to do or click on the nook?
After I unroot, won't I get over the air update to 1.4.3? So is this new root you are telling me to do going to work for 1.4.3?
So lets pretend I unrooted my nook and burned the image into my sd card for the new root. I put in the sd card in my nook, and turn it on, and then its rooted just like that?
Did you do this to your nook? What are the chances of bricking my nook? Also I have an 8gb nook tablet...this root you are telling me to do works for it right?
Sorry for all the questions but I want to take extra precautions not to brick my nook. And thank you so much for your help!
SplendaChan said:
So I just plug in my sd card and the nook unroots? Is there anything I have to do or click on the nook?
After I unroot, won't I get over the air update to 1.4.3? So is this new root you are telling me to do going to work for 1.4.3?
So lets pretend I unrooted my nook and burned the image into my sd card for the new root. I put in the sd card in my nook, and turn it on, and then its rooted just like that?
Did you do this to your nook? What are the chances of bricking my nook? Also I have an 8gb nook tablet...this root you are telling me to do works for it right?
Sorry for all the questions but I want to take extra precautions not to brick my nook. And thank you so much for your help!
Click to expand...
Click to collapse
You can keep your internal rooted stock rom if you want, I was just suggesting you could use the repart image which deletes your partition and rewrites stock 1.4.2 right out of the box. This blocks over the air updates, so your nook won't update to 1.4.3 (you don't need it anyways because it only blocked rooting).
When you put the repart image SD card into your NT it will show a screen saying "Installing New Software" then a green checkmark will appear. Take your SD card out and it will start to Install New Software. Once it's done you'll have a fresh out of the box Nook! (kinda)
Rooting is simply the process of giving a device "administrator privileges" or root access to change all files. The new ROMs come pre-rooted so you don't need to root your device at all. When using the SDC CM10.1 image it will create the 4 partitions on the SD card for you (and you expand them later for more app space.)
When you write the CM10.1 image file to your SD card then put it in your nook. It will boot Cyanoboot and will start "SDC Boot" which will boot your ROM. There is a 0.01 % of you bricking your device during this process, so you are safe.
datallboy said:
You can keep your internal rooted stock rom if you want, I was just suggesting you could use the repart image which deletes your partition and rewrites stock 1.4.2 right out of the box. This blocks over the air updates, so your nook won't update to 1.4.3 (you don't need it anyways because it only blocked rooting).
When you put the repart image SD card into your NT it will show a screen saying "Installing New Software" then a green checkmark will appear. Take your SD card out and it will start to Install New Software. Once it's done you'll have a fresh out of the box Nook! (kinda)
Rooting is simply the process of giving a device "administrator privileges" or root access to change all files. The new ROMs come pre-rooted so you don't need to root your device at all. When using the SDC CM10.1 image it will create the 4 partitions on the SD card for you (and you expand them later for more app space.)
When you write the CM10.1 image file to your SD card then put it in your nook. It will boot Cyanoboot and will start "SDC Boot" which will boot your ROM. There is a 0.01 % of you bricking your device during this process, so you are safe.
Click to expand...
Click to collapse
So just to make sure, it is ok for me not to unroot and turn my nook into stock 1.4.2? It will work on 1.4.3? And if I do not unroot, will this use up alot of battery when I put in the Jellybean ROM via SD Card? Can the Nook Tablet be able to handle Jellybean well?
Also,the SD card I used to root my nook into the old Gingerbread was a "Patriot 32gb Class 4". I already fixed up the SD card so it is back to 32gb again...can I use this type of SD card for the Jellybean root? I do not have a Sandisk.
The repart image takes your NT back to stock 1.4.2, from which you should be able to upgrade to stock 1.4.3.
To create a CM10.x SDcard see http://iamafanof.wordpress.com/2013/02/18/cm10-1-jellybean-android-4-2-2-for-nook-tablet-0218/ and http://forum.xda-developers.com/showthread.php?t=2098419.
See this thread http://forum.xda-developers.com/showthread.php?t=1005633 for extensive discussion of comparative performance (for the purpose running ROM) of SD cards of various makes/models.
Thank You!
datallboy said:
Well you don't just "upgrade" to Jelly Bean. The method you used is rather old. CM10.1 Jelly Bean 4.2.2 is currently the newest version available. Since you're new I suggest using a SDC image
All you need to do is write the image file to an SD card and you're good to go. Use win32diskimager to write the image file to your SD card.
Click to expand...
Click to collapse
This is exactly what I needed. I tried looking around and either a link didn't work or I couldn't get something else to work. Now I just have to figure out how to open up some space on it. Seems to only allow me to use a quarter of it. More searching tomorrow! Thank you to the OP for posting this also! Quick question, if I remove the SD card will that remove cm10.1 from the nook? Not sure if it's on just the SD or internal. Oh and one more question how do I access the Barnes and Noble part now? Mainly just the book part. If I can't I can always covert to .mobi and continue to use my kindle app. Thanks again. I foresee me having lot's of fun with this.
Mystina83 said:
This is exactly what I needed. I tried looking around and either a link didn't work or I couldn't get something else to work. Now I just have to figure out how to open up some space on it. Seems to only allow me to use a quarter of it. More searching tomorrow! Thank you to the OP for posting this also! Quick question, if I remove the SD card will that remove cm10.1 from the nook? Not sure if it's on just the SD or internal. Oh and one more question how do I access the Barnes and Noble part now? Mainly just the book part. If I can't I can always covert to .mobi and continue to use my kindle app. Thanks again. I foresee me having lot's of fun with this.
Click to expand...
Click to collapse
If you remove the sd card you'll boot into the BN system again and get full access to everything there.
To get more storage space on the card you can use for example Mini Tool Partition software (that's the one I use, but I know there are other free ones available as well), and change the storage partition to use up all the unallocated memory on the card.
Long story but its cooked. Do not have a spare sd card to put in, and still rooted. Want to make sure any personal info has been deleted. Is there a best way to do this. Tried copying nook update 1.4.3.zip but it wont download since no sd card, or copy from internet
Do you have ADB access?
Edit: mmm.........check out this procedure for the Nook Color. If you have CWM on your NT it might work the same way.
wedmiston said:
Long story but its cooked. Do not have a spare sd card to put in, and still rooted. Want to make sure any personal info has been deleted. Is there a best way to do this. Tried copying nook update 1.4.3.zip but it wont download since no sd card, or copy from internet
Click to expand...
Click to collapse
Can you still boot into custom recovery?
If so, you should be able to simply reformat or delete the system, data, and user-media partitions to remove any personal info.
U could look for the repart image file, burn that to sd card, and that will boot from the sd, repartition it and return it to stock 1.4.2, like new again.
there is more than one variant around, Ive used this one a lot
http://raywaldo.com/2012/06/how-to-un-brick-a-nook-tablet-8gb-or-16gb/
edit ... sorry I didnt catch at first u don't have an sd card....
sort of depends what recovery you had loaded I think as to what options you have
wedmiston said:
Long story but its cooked. Do not have a spare sd card to put in, and still rooted. Want to make sure any personal info has been deleted. Is there a best way to do this. Tried copying nook update 1.4.3.zip but it wont download since no sd card, or copy from internet
Click to expand...
Click to collapse
Just search for "repart.img nook tablet" on Google. The first result should show an "unbrick tool" that you can use. It's just an .img file that you can write to an sd via Win32 DiskImager. Boot your tablet by putting the SD in, then inserting a powered USB cable. When the green checkmark appears, you'll know that the process was successful. Just pop the SD out and you can forget about it. The Nook will even be repartitioned, with a lovable setup of 7.5 GB for media partition (personal data) and 5.5 GB for app data. You can get more details by visiting the website I directed you to.
Cheers